{"id":1252,"date":"2012-08-31T12:13:22","date_gmt":"2012-08-31T04:13:22","guid":{"rendered":"http:\/\/rmohan.com\/?p=1252"},"modified":"2012-08-31T12:17:52","modified_gmt":"2012-08-31T04:17:52","slug":"find-process-causing-high-iowait-disk-space-issues","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=1252","title":{"rendered":"Find process causing high iowait  Disk Space issues"},"content":{"rendered":"<p>Disk Space issues<\/p>\n<p>mpstat -P ALL<\/p>\n<p>cat \/proc\/interrupts<\/p>\n<p>iostat -kd 1<br \/>iostat -c -t<br \/>iostat -c -t 2 10 <br \/>iostat -c 3 <br \/>iostat -d 5<br \/>iostat -x 1<\/p>\n<p>sar -b<\/p>\n<p>vmstat -S M 2 5<\/p>\n<p>Find process causing high iowait<\/p>\n<p>netstat -autpn | grep :80<br \/>netstat -autpn | grep :3306<br \/>netstat -na<br \/>netstat -an|grep :80|sort|more<br \/>netstat -an|grep ESTABLISHED<br \/>netstat -ntu | awk &#8216;{print $5}&#8217; | cut -d: -f1 | sort | uniq -c | sort -nr | more<br \/>ps ax | awk &#8216;$3 ~ \/^D\/ { print $0 }&#8217;<br \/>netstat -an | grep :80 | wc -l<\/p>\n<p>DO NOT DO THIS until you are certain what is going on.<\/p>\n<p>echo 100 &gt; \/proc\/sys\/vm\/inactive_clean_percent<br \/>echo 2 10 20 &gt; \/proc\/sys\/vm\/pagecache<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Disk Space issues<\/p>\n<p>mpstat -P ALL<\/p>\n<p>cat \/proc\/interrupts<\/p>\n<p>iostat -kd 1iostat -c -tiostat -c -t 2 10 iostat -c 3 iostat -d 5iostat -x 1<\/p>\n<p>sar -b<\/p>\n<p>vmstat -S M 2 5<\/p>\n<p>Find process causing high iowait<\/p>\n<p>netstat -autpn | grep :80netstat -autpn | grep :3306netstat -nanetstat -an|grep :80|sort|morenetstat -an|grep ESTABLISHEDnetstat -ntu | awk &#8216;{print [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1252"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1252"}],"version-history":[{"count":4,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1252\/revisions"}],"predecessor-version":[{"id":1254,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/1252\/revisions\/1254"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}